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1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • IGI 668457801

Shape and cutting style on the report: Round brilliant

Certificate IGI 668457801

Diamond specifications and retailer prices

From HK$26,581 HKD
$3,388 USD
As of October 30, 2026
Save HK$25,593 HKD (49%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$52,174 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 668457801. Listed at 13 retailers as of October 30, 2026, with prices from HK$26,581 to HK$52,174, a HK$25,593 spread on the same certified stone. NZ Jewellers lists it at HK$52,174. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 668457801
Dimensions7.45 × 7.52 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.45 mm7.52 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 668457801
Side View
Table 58.0%Crown 33.4°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: HK$52,174 HKD|Low: HK$25,334 HKD|High: HK$52,174 HKD|Avg: HK$33,712 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 1, 2026
Retailer 11HK$25,930 HKD
Retailer 13HK$26,581 HKD
Retailer 5HK$26,762 HKD
Retailer 12HK$27,640 HKD
Retailer 4HK$29,947 HKD
Retailer 15HK$29,947 HKD
Retailer 7HK$31,095 HKD
Retailer 14HK$31,100 HKD
Retailer 2HK$32,392 HKD
Retailer 10HK$34,525 HKD
Retailer 3HK$34,552 HKD
Retailer 9HK$34,913 HKD
Retailer 6HK$35,636 HKD
Retailer 8HK$50,079 HKD
NZ JewellersHK$52,174 HKD

40 data points across 15 retailers

13 retailersHK$26,581 HKD to HK$52,174 HKD

Retailer 1
-
HK$25,930 HKD
$3,305 USD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$26,581 HKD
$3,388 USD
View
A
Retailer 3
-
HK$27,640 HKD
$3,523 USD
View
Final sale: no returns
A
Retailer 4
-
HK$29,947 HKD
$3,817 USD
View
A
Retailer 5
-
HK$29,947 HKD
$3,817 USD
View
A
Retailer 6
-
HK$31,095 HKD
$3,963 USD
View
A
Retailer 7
-
HK$31,100 HKD
$3,964 USD
View
A
Retailer 8
-
HK$32,392 HKD
£3,251 GBP
View
A
Retailer 9
-
HK$34,525 HKD
£3,465 GBP
View
B+
Retailer 10
-
HK$34,552 HKD
$4,404 USD
View
A
Retailer 11
-
HK$34,913 HKD
€4,238 EUR
View
B+
Retailer 12
-
HK$50,079 HKD
£5,026 GBP
View
Most Expensive
B
NZ Jewellers
e9cd51c0-6bd9-4603-b3f2-4a85b77b4a21 · Oct 30
HK$52,174 HKD
$6,650 USD
View
12 more retailers have this diamond
Prices start from HK$26,581 HKDSave up to HK$25,593 HKD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.55ct Round
HK$26,581 HKD